辽河坳陷古近系构造-沉积演化特征

李传亮

doi:10.3969/j.issn.1673-8926.2008.02.010

岩性油气藏 >

2008 , Vol. 20 >Issue 2: 60 - 65

DOI: https://doi.org/10.3969/j.issn.1673-8926.2008.02.010

油气地质

辽河坳陷古近系构造-沉积演化特征

李传亮

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中国石油辽河油田公司勘探项目管理部

孙洪斌, 1963 年生, 男, 博士, 从事勘探项目管理和石油地质综合研究工作。地址: ( 124010) 辽宁省盘锦市兴隆台区辽河油田公司勘探项目管理部。电话: ( 0427) 7298515。E-mail: shbin@petrochina.com.cn

网络出版日期: 2008-06-15

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Structural-sedimentary evolution char acter istics of Paleogene in Liaohe Depr ession

LI Chuan-liang

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Liaohe Oilfield Company, PetroChina, Panjin 124010, China

Online published: 2008-06-15

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摘要

辽河坳陷是叠置在中生界盆地之上的新生代含油气坳陷。古近纪早期断陷特征十分明显, 晚期则是坳陷特点显著, 其演化可分为3 个期次: ①沙四、沙三期的断陷期; ②沙一、沙二期的断坳转换期; ③东营期的坳陷期。认为断陷期的沙四、沙三期主要发育扇三角洲相和湖底扇相; 断坳转换期的沙一、沙二期主要发育扇三角洲相和冲积扇相; 坳陷期的渐新世东营期主要发育三角洲相和泛滥平原相。

关键词： 岩石; 油气运移; 初次运移; 二次运移; 毛管压力

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李传亮 . 辽河坳陷古近系构造-沉积演化特征[J]. 岩性油气藏, 2008 , 20(2) : 60 -65 . DOI: 10.3969/j.issn.1673-8926.2008.02.010

Abstract

Liaohe Depression is a Cenozoic oil-bearing depression which overlaps Mesozoic basin. The rift characteristics are very obvious at the early stage of Paleogene, but in the later period, the depression characteristics are marked. The evolution of Liaohe Depression could be divided into three periods, including Sha 4 and Sha 3 rift period, Sha 1+2 rift-depression period and Dongying depression period. Fan delta and sublacustrine fan facies developed during rift period of Sha 4 and Sha3; fan delta facies and alluvial facies chiefly developed during rift-depression period of Sha 1+2; delta facies and flood plain facies mainly developed during the depression period of Dongying stage.

Key words： rock; petroleummigration; primary migration; secondary migration; capillary pressure

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